Paraboloidal mirror
[化] 抛物面镜
🧩 词语组成解析
抛物面的, 抛物线体
🗣️ 情景例句
This is no small accomplishment.
这是非同小可的成就。
One half of the world does not know how the other half lives.
贫富不相知。
and the search for oil has done more to improve deep drilling than any other mining activity.
寻找石油比其他任何采矿业对改进深孔钻探作的贡献都要大。